Objective Questions

Questions (805)

#	Question	Topic	Actions
601	Guard cells are unique in the epidermis because, unlike other epidermal cells, …	Practice Questions BOT 102	View
602	The waxy, waterproof layer covering the outer walls of leaf/stem epidermis is c…	Practice Questions BOT 102	View
603	A cluster/group of flowers arranged on a single stalk is called an _______.	Practice Questions BOT 102	View
604	The study of flower structure and arrangement is called _______.	Practice Questions BOT 102	View
605	In a typical dicot seed like the bean, the food reserve is stored mainly in the…	Practice Questions BOT 102	View
606	A fruit that develops from a flower with an inferior ovary (ovary below the oth…	Practice Questions BOT 102	View
607	Movement of water and minerals in non-vascular plants occurs by _______.	Practice Questions BOT 102	View
608	Which of the following best describes bryophytes?	Practice Questions BOT 102	View
609	Which of the following is an example of a non-motile unicellular microalgae?	Practice Questions BOT 102	View
610	Which of the following is an example of a colonial microalgae?	Practice Questions BOT 102	View
611	Spirogyra is an example of _______ microalgae.	Practice Questions BOT 102	View
612	Gemma cups are found on the mid-ribs of _______.	Practice Questions BOT 102	View
613	Anthoceros is an example of a _______.	Practice Questions BOT 102	View
614	What is the shape of the antheridia in Marchantia plant?	Practice Questions BOT 102	View
615	Which of the following is a characteristic feature of dicots?	Practice Questions BOT 102	View
616	Monocots typically have flower parts in multiples of:	Practice Questions BOT 102	View
617	Dicotyledonous plants usually have:	Practice Questions BOT 102	View
618	In dicots, vascular bundles in the stem are usually arranged:	Practice Questions BOT 102	View
619	Which of the following is true about monocot roots?	Practice Questions BOT 102	View
620	A key difference in leaf venation between monocots and dicots is:	Practice Questions BOT 102	View
621	Which part of the plant is used to differentiate monocots and dicots?	Practice Questions BOT 102	View
622	A plant with a taproot, netted (reticulate) venation, and floral parts in fives…	Practice Questions BOT 102	View
623	Grasses, palms, orchids, bananas, and lilies all belong to the class _______.	Practice Questions BOT 102	View
624	The two cotyledons of a dicot seed often serve as the main food store because t…	Practice Questions BOT 102	View
625	A plant classification system based on genetic/molecular (DNA) similarity rathe…	Practice Questions BOT 102	View
626	The scientific name of an organism always has _______ parts (genus + species), …	Practice Questions BOT 102	View
627	In Laminaria, the leaf-like structures responsible for photosynthesis are calle…	Practice Questions BOT 102	View
628	A film of water is needed for reproduction in Bryophytes because _______.	Practice Questions BOT 102	View
629	In Bryophytes, _______ perform the function of roots.	Practice Questions BOT 102	View
630	The _______ is the dominant phase in the Division Bryophyta.	Practice Questions BOT 102	View
631	Which of the following is a moss?	Practice Questions BOT 102	View
632	The gemma produced in gemma cups in some bryophytes is responsible for _______.	Practice Questions BOT 102	View
633	The thallus of Funaria possesses the following except _______.	Practice Questions BOT 102	View
634	Which of the following is present on the ventral surface of Marchantia?	Practice Questions BOT 102	View
635	Why is Marchantia plant dioecious?	Practice Questions BOT 102	View
636	Name four plant hormones that regulate growth: _______, _______, _______, and e…	Practice Questions BOT 102	View
637	_______ (photoperiod) affects stem elongation, branching, and flowering in plan…	Practice Questions BOT 102	View
638	Plant cells differ from animal cells most notably in the presence of a rigid __…	Practice Questions BOT 102	View
639	The outermost layer of the cell wall, shared between adjacent cells and compose…	Practice Questions BOT 102	View
640	The thin, flexible layer deposited by young, growing cells, composed of cellulo…	Practice Questions BOT 102	View
641	The thick, rigid layer deposited after a cell stops growing, often impregnated …	Practice Questions BOT 102	View
642	List three functions of the cell wall: provides mechanical _______, determines …	Practice Questions BOT 102	View
643	The cell wall permits movement of water and solutes between cells via _______ a…	Practice Questions BOT 102	View
644	The plasma membrane is described using the _______ model, composed of a _______…	Practice Questions BOT 102	View
645	The plasma membrane regulates movement of substances via diffusion, osmosis, fa…	Practice Questions BOT 102	View
646	The nucleus is often called the _______ of the cell, and is bound by a double m…	Practice Questions BOT 102	View
647	The semi-fluid matrix within the nucleus is called the _______.	Practice Questions BOT 102	View
648	A diffuse network of DNA and associated histone proteins, which condenses into …	Practice Questions BOT 102	View
649	The dense, non-membrane-bound region within the nucleus, site of ribosomal RNA …	Practice Questions BOT 102	View
650	All the living contents of a cell between the plasma membrane and nucleus is ca…	Practice Questions BOT 102	View
651	Double-membrane-bound organelles unique to plant cells, involved in photosynthe…	Practice Questions BOT 102	View
652	Chloroplasts contain the pigment _______, housed in internal membrane stacks ca…	Practice Questions BOT 102	View
653	Chloroplasts possess their own circular DNA and ribosomes, which is evidence fo…	Practice Questions BOT 102	View
654	Plastids containing carotenoid pigments responsible for yellow, orange, and red…	Practice Questions BOT 102	View
655	Colourless plastids specialised for storage include _______ (starch, e.g., pota…	Practice Questions BOT 102	View
656	The large central vacuole in mature plant cells can occupy up to _______% of ce…	Practice Questions BOT 102	View
657	The vacuole stores water, ions, sugars, and pigments called _______, and helps …	Practice Questions BOT 102	View
658	The vacuole contains hydrolytic enzymes and may function like a _______, breaki…	Practice Questions BOT 102	View
659	Mitochondria are the site of _______ cellular respiration, producing _______ (t…	Practice Questions BOT 102	View
660	The inner mitochondrial membrane is folded into _______, increasing surface are…	Practice Questions BOT 102	View
661	Like chloroplasts, mitochondria possess their own _______ and ribosomes.	Practice Questions BOT 102	View
662	The endoplasmic reticulum is a network of interconnected tubules and flattened …	Practice Questions BOT 102	View
663	Rough ER is studded with _______ and is the site of synthesis of proteins desti…	Practice Questions BOT 102	View
664	Smooth ER lacks ribosomes and is the site of _______ and steroid synthesis, and…	Practice Questions BOT 102	View
665	The Golgi apparatus consists of a stack of flattened, membrane-bound sacs calle…	Practice Questions BOT 102	View
666	The Golgi apparatus modifies proteins/lipids (e.g., by _______), sorts them, an…	Practice Questions BOT 102	View
667	In plant cells, the Golgi apparatus is especially important in synthesising and…	Practice Questions BOT 102	View
668	Ribosomes are composed of ribosomal RNA and _______ and are the site of _______…	Practice Questions BOT 102	View
669	Ribosomes may occur free in the _______ or bound to the _______.	Practice Questions BOT 102	View
670	Small, single-membrane-bound organelles containing oxidative enzymes, involved …	Practice Questions BOT 102	View
671	A specialised type of peroxisome found in fat-storing seeds, containing enzymes…	Practice Questions BOT 102	View
672	The cytoskeleton is a dynamic network of protein filaments providing structural…	Practice Questions BOT 102	View
673	Hollow tubes of the protein _______ involved in spindle fibre formation and gui…	Practice Questions BOT 102	View
674	Solid filaments of the protein _______ involved in cytoplasmic streaming, are c…	Practice Questions BOT 102	View
675	Minute channels traversing the cell wall, connecting the cytoplasm of adjacent …	Practice Questions BOT 102	View
676	Plasmodesmata functionally link the cytoplasm of the whole plant into a continu…	Practice Questions BOT 102	View
677	Comparing plant and animal cells: plant cells have a _______ (absent in animal …	Practice Questions BOT 102	View
678	Plant cells store carbohydrate as _______ while animal cells store it as ______…	Practice Questions BOT 102	View
679	Plant cell division is completed by cytokinesis, distinguished by the formation…	Practice Questions BOT 102	View
680	Morphology is the study of the _______ form and structure of an organism.	Practice Questions BOT 102	View
681	In angiosperms, the plant body is organised into a _______ system and a _______…	Practice Questions BOT 102	View
682	Roots develop from the _______ of the embryo and generally lack nodes, internod…	Practice Questions BOT 102	View
683	List three functions of roots: anchorage, absorption of water and minerals (mai…	Practice Questions BOT 102	View
684	Roots also help in _______ of water/minerals upward and photosynthates downward…	Practice Questions BOT 102	View
685	A single dominant primary root with smaller lateral roots (typical of dicots) i…	Practice Questions BOT 102	View
686	Numerous adventitious roots of similar size (typical of monocots) form a ______…	Practice Questions BOT 102	View
687	Roots swollen for food storage (e.g., cassava, carrot) are called _______ roots.	Practice Questions BOT 102	View
688	Adventitious roots providing extra support (e.g., maize, mangrove) are called _…	Practice Questions BOT 102	View
689	Roots that grow upward for gas exchange in waterlogged soils (e.g., mangrove) a…	Practice Questions BOT 102	View
690	Roots that grow above ground and absorb atmospheric moisture (e.g., orchids) ar…	Practice Questions BOT 102	View
691	The stem bears _______ (points of leaf/bud attachment) and _______ (regions bet…	Practice Questions BOT 102	View
692	A short, vertical, swollen underground stem (e.g., cocoyam) is called a _______.	Practice Questions BOT 102	View
693	A horizontal above-ground stem that roots at nodes to form new plants (e.g., st…	Practice Questions BOT 102	View
694	Hardened, pointed stem modifications for defence (e.g., Bougainvillea, Citrus) …	Practice Questions BOT 102	View
695	The leaf is the primary site of _______ and _______ (water loss).	Practice Questions BOT 102	View
696	The point of leaf attachment to the stem is the leaf _______, which may bear sm…	Practice Questions BOT 102	View
697	The stalk connecting the leaf blade to the stem is the _______; a leaf lacking …	Practice Questions BOT 102	View
698	The expanded, flattened portion of a leaf, containing the midrib and veins, is …	Practice Questions BOT 102	View
699	A leaf with a single, undivided lamina (e.g., mango) is a _______ leaf; one div…	Practice Questions BOT 102	View
700	Leaflets radiating from a single point (e.g., silk cotton) show _______ compoun…	Practice Questions BOT 102	View

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